Battle of the Century ¥ Challenge Segalion!! - S1.E23

While Nagare is taken to hospital following the battle, Kaito is awarded his championship prize and the opportunity to fight the world champion, Ryouta Arashiyama, and his hero suit Segalion. After the group get together at Kaito's house to celebrate his victory, the battle between Kaito and Ryouta begins, with both fighters evenly matched and Kaito emerging as the eventual victor. Following the match, however, it is revealed Ryouta was actually a virtual puppet created by Money Ghost, who announces the Hero Wars were all his plan in order to awaken a key. After Sennen chases him off, he takes Kaito and the others to a secret facility underneath their clubroom known as Gold Base. There, Sennen and his assistant, Hikari Takarano, reveal that Money Ghost is actually the creator of Hero Battles, Adachi Sumimori, who has sworn revenge against money for the tragedies it has brought. The group soon learn that Nagare has been kidnapped by Adachi, who plans to use him to overwrite the world.